function CalculateEnglishBMI(){
var d = new Date();
var url  = '/bmi.php';
var ajax = new Ajax.Request(url, {
							method: 'get',  
							parameters: {inches: $F('inches'), pounds: $F('pounds'), type: 'english', bustcache: d.getTime()},
							onLoading: function(preload){
							$('local_result').innerHTML = "<img src='images/ajax-loader.gif' border=0/>";
							$('local_result').className = "bmi_loader";
							},
							onSuccess: function(transport){ 
								var response = transport.responseText;    
								$('local_result').innerHTML = response;
								},
							onFailure: function(){ 
								alert('Something went wrong...'); 
								} 							
						}); 
} 
function CalculateMetricBMI(){
var d = new Date();
var url  = '/bmi.php';
var ajax = new Ajax.Request(url, {
							method: 'get',  
							parameters: {cms: $F('cms'), kgs: $F('kgs'), type: 'metric', bustcache: d.getTime()},
							onLoading: function(preload){
							$('local_result').innerHTML = "<img src='images/ajax-loader.gif' border=0/>";
							$('local_result').className = "bmi_loader";
							},
							onSuccess: function(transport){ 
								var response = transport.responseText;    
								$('local_result').innerHTML = response;
								},
							onFailure: function(){ 
								alert('Something went wrong...'); 
								} 							
						}); 
}  
function CalculateRisk(){
var d = new Date();	
var url  = '/risk.php';
var ajax = new Ajax.Request(url, {
							method: 'get',  
							parameters: {bmi: $F('bmi'), inches: $F('inches'), gender: $F('gender'), bustcache: d.getTime()},
							onLoading: function(preload){
							$('local_result').innerHTML = "<img src='images/ajax-loader.gif' border=0/>";
							$('local_result').className = "bmi_loader";
							},
							onSuccess: function(transport){ 
								var response = transport.responseText;    
								$('local_result').innerHTML = response;
								},
							onFailure: function(){ 
								alert('Something went wrong...'); 
								} 							
						}); 
}  
function DateTime(){
var url  = 'time.php';
var container = $('date_time');
var ajax = new Ajax.PeriodicalUpdater(container, url,
									  {   method: 'get', frequency: 1, decay: 1 });
}